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Bridge steel is a steel plate specially used for erecting railway or highway bridges. It is required to have high strength, toughness, bear the load and impact of locomotive and vehicle, and have good fatigue resistance, certain low-temperature toughness and atmospheric corrosion resistance. It is used for erecting railway bridges, highway bridges, sea crossing bridges, etc. It is required to have high strength, toughness, bear the load and impact of locomotive and vehicle, and have good fatigue resistance, certain low-temperature toughness and atmospheric corrosion resistance. The steel for bolted welded bridge should also have good welding performance and low notch sensitivity.
The mainly steel grade used in bridge building
A709 Grade 36 |
A709 Grade 50 |
A709 Grade 50S |
A709 Grade 50W |
A709 Grade HPS 50W |
A709 Grade 250 |
A709 Grade 345 |
A709 Grade 345S |
A709 Grade 345W |
A709 Grade HPS 345W |
A709 Grade HPS 70W |
A709 Grade 100 |
A709 Grade 100W |
A709 Grade HPS 100W |
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A709 Grade HPS 485W |
A709 Grade 690 |
A709 Grade 690W |
A709 Grade HPS 690W |
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